sandbox run broken because ifconfig isn't available everywhere

[longshorej]

• Install arch
• Start the sandbox
• See the following:

$ sandbox run 0.1.0
|------------------------------------------------|
| Starting ConductR                              |
|------------------------------------------------|
Network address aliases are required so that the sandbox can operate as a cluster of machines.
To add the network aliases sudo privileges are required.
sudo: ifconfig: command not found
Not able to add the network address aliases. Please add them manually:

• Note the following:

$ sudo which ifconfig
which: no ifconfig in (/home/longshorej/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl)

I believe the ip command is the new replacement. We probably have to work with both ip and ifconfig.

[longshorej]

Relevant:

https://bbs.archlinux.org/viewtopic.php?id=120548
https://www.archlinux.org/news/deprecation-of-net-tools/